I have lots of options for you

Suggestions include

Thaddeus- inheriting some dark shizz from a member of the Knights
Bernard - getting yet another really rubbish inheritance from a 'friend'
Horace - he was well connected and assumed dead for a long time, so could have a tie in there, perhaps a tontine or something
Longwei - payment for escrow service, or in settlement of business debts
Merida - a patient left it to her who she would have paid particular attention/care to
Rose - left it by a patron

Can work out some others, depending on how the group fills out